Mint Errors Mistaken for Patterns

The purpose of this page is twofold. It is to list those pieces which are or were often confused as patterns in the past as well as list pieces which may have been deliberately struck for sale to collectors. Many of these pieces have Judd and/or Pollock numbers. Others are listed in the back of Judd in appendix B.

In many cases, the error pieces listed are rarer and more valuable than the die trials they are confused with.

Items are listed by year.


P3007
P3007

P34
P34

J49/P50
J49/P50

1851 $20 on Cent
1851 $20 on Cent

AW249
AW249

P3188
P3188

J229A/P273A
J229A/P273A

J268/P316
J268/P316

J281/P332
J281/P332

Indian Cents on Nickel Planchets
Indian Cents on Nickel Planchets

Indian Cents on Dime Planchets
Indian Cents on Dime Planchets

Cents on Quarter Eagle Planchets
Cents on Quarter Eagle Planchets

Two Cent Pieces on Cent Planchet
Two Cent Pieces on Cent Planchet

Two Cent on Shield Nickel Planchets
Two Cent on Shield Nickel Planchets

Shield Nickels on Cent Planchets
Shield Nickels on Cent Planchets

J542/P607
J542/P607

J1260A/P1401
J1260A/P1401

J1758/P1971
J1758/P1971

P2028
P2028

1920 5 Cent on Copper Planchet
1920 5 Cent on Copper Planchet

P2078
P2078

1970S Half Dollar in Aluminum
1970S Half Dollar in Aluminum

1999 Connecticut on Brass Coated Planchet
1999 Connecticut on Brass Coated Planchet

1999 Delaware on Brass Coated Planchet
1999 Delaware on Brass Coated Planchet

1999 Georgia on Brass Coated Planchet
1999 Georgia on Brass Coated Planchet

1999 New Jersey on Brass Coated Planchet
1999 New Jersey on Brass Coated Planchet

1999 Pennsylvania on Brass Coated Planchet
1999 Pennsylvania on Brass Coated Planchet

1999 SBA on Brass Coated Planchet
1999 SBA on Brass Coated Planchet

2000 Massachusetts on Brass Coated Planchet
2000 Massachusetts on Brass Coated Planchet

Die Adjustment Strikes